Re: sbuild on hurd-amd64...

Le 16/08/2025 à 00:11, Samuel Thibault a écrit :
>>> I have discussed with Helmut about implementing a sub-hurd-based schroot
>>> backend, it should be quite easy, just needs some dive-in to know how to
>>> explain schroot how to run sub-hurds.
>>
>> I tried following the documentation at:
>>
>>    https://www.gnu.org/software/hurd/hurd/subhurd.html
>>
>> But I could not get a subhurd to boot.
>>
>> I tried:
>> - with the same image as the VM
>> - creating an image with debootstrap
>> - creating an image with crosshurd
>>
>> I always get the message:
>>
>>> /hurd/ext2fs.static --readonly "--multiboot-command-line=fastboot root=pseudo-root" --host-priv-port=1 --device-master-port=2 --kernel-task=3 --exec-server-task=4 -T device pseudo-root
>>> /lib/ld.so /hurd/exec
>>> /lib/ld.so: cannot open bootstrap file
>>
>> or similar.
>>
>> Any clue?
> 
> The documentation was for hurd-i386. On hurd-amd64, ld.so is called
> ld-x86-64.so.1

Now that I could debootstrap, I tried again running a subhurd.

With the attached boot-script.hurd (taken from hurd's boot.c and adapted 
to use /usr/lib/ld-x86-64.so.1) and a subhurd.img (as an ext2 image 
generated using debootstrap), I get:

> demo@debian:~$ boot --boot-script=boot-script.hurd subhurd.img 
> /hurd/ext2fs.static --readonly "--multiboot-command-line=boot - root=pseudo-root" --host-priv-port=1 --device-master-port=2 --kernel-task=3 --exec-server-task=4 -T device pseudo-root
> /lib/ld-x86-64.so.1 /hurd/exec

Then nothing. I have no idea if something is going on, nor do I know how 
to proceed to debug things. Any pointers?


Cheers,